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Digital Ph Meter Tester Water Wine Urine Monitor Accuracy 0.01 Automatic Calibration Ph 0-14 Temp 0-80 ℃ For Aquarium Pool Water - Ph Meters - AliExpress
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PH Meter, Digital PH Tester 0.01 High Accuracy PH Meter for Water, 0-14 PH Measurement Range for Drinking Water, Pool and Aquarium: Amazon.com: Industrial & Scientific
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PH Meter for Water Hydroponics Digital PH Tester Pen 0.01 High Accuracy Pocket Size with 0-14 PH Measurement Range for Household Drinking, Pool and Aquarium (Blue): Amazon.com: Industrial & Scientific
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